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Finding the Fourth Proportional to 1,194.88, 1,790.19 and 1,019.76

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Solution

The fourth proportional to 1,194.88, 1,790.19 and 1,019.76 is: 1,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.88 : 1,790.19 = 1,019.76 : x
  2. Step 2: Convert to fraction form
    1,194.88/1,790.19 = 1,019.76/x
  3. Step 3: Cross multiply
    1,194.88x = 1,790.19 × 1,019.76
  4. Step 4: Simplify right side
    1,194.88x = 1,825,564.15
  5. Step 5: Solve for x
    x = 1,825,564.15/1,194.88
  6. Step 6: Final answer
    x = 1,527.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.